PURPOSE: A stent for a branch blood vessel is provided to improve usage efficiency by being manufactured in various types. CONSTITUTION: A stent for a branch blood vessel comprises: a stent(100) for a main blood vessel, which has a diameter capable of inserting a cylindrical body having a space part of a diamond shape into a main blood vessel; a stent(200) for a small blood vessel, which has a diameter capable of inserting a cylindrical body having a space part of a diamond shape into a main blood vessel; and a stent(300) for a branch blood vessel, which has a diameter capable of inserting a cylindrical body having a space part of a diamond shape into a main blood vessel and is formed to be inserted into a branch blood vessel.
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